Why isn't my talkback mic working when I press the talkback button?

Make certain you have selected where talkback will go, via the buttons on the lower part of your right-hand module (talkback to Cue or studio), and make certain you have selected the "EXP" button which selects external talkback input.

If the gain at the panel is not sufficient, there is a trimpot on the rear of the 2RU unit where the mic is plugged in, that can add some gain. Please adjust it with care and remember that the on-board preamp does not supply phantom power. Use a sufficiently sensitive dynamic mic (the AKG D58 was used on the Neve BCM10 and other consoles) or grab an external phantom supply and any condenser you like.